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【简答题】
II. Use the verb in brackets to form an appropriate phrasal verb you have learned and complete the sentence with it. In the economic crisis, many factories have begun to lay off workers. Now the government the problem of helping create jobs for the large number of unemployed.(face) If you let yourself i n paper work, you 'll never find time to deal with the really important issues.(bog) Despite difficulties, the government is with its campaign to eliminate corruption.(press) “We could take no chances; if we fail in Normandy the war might for years,” said the Allied commander-in-chief.(drag) The tolerance of her poor English by others meant she could with her often incorrect grammar and limited vocabulary.(get) Edward knew it would cost him a fortune to at such an expensive restaurant, but then he could not afford to offend her by going to a less expensive one.(dine) As the economy shows no signs of picking up, many companies on workers’ benefits and stopped investing in new projects. With the price of fuel skyrocketing, I really don’t know how we are going to the severe winter.
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参考答案:
举一反三
【多选题】elaborate
A.
精心计划的
B.
美丽的
C.
详细制定
D.
复杂的
【简答题】变频调速中,当变频器输出频率从额定频率降低时,其输出电压应如何变化?为什么?
【判断题】变压变频调速系统中,调速时需同时调节定子电源的电压和频率( )
A.
正确
B.
错误
【单选题】elaborate
A.
简述
B.
详述
C.
简单
【简答题】变频调速时,基本频率以下的调速属于恒转矩调速,基本频率以上的属于______调速
【单选题】公文版心左上角第一行一般标注
A.
年份号
B.
公文份号
C.
月份号
D.
年月日
【单选题】elaborate
A.
复杂的
B.
有趣的
C.
昂贵的
【多选题】变频调速时,把额定频率称为基频,按照调速范围,将变频调速分为( )
A.
恒功率调速
B.
恒转矩调速
C.
恒转差率调速
D.
基频以上调速
E.
基频以下调速
【简答题】变频调速时,基本频率以下的调速属于恒转矩调速,基本频率以上的属于(  )调速。A. 恒功率
【单选题】elaborate
A.
a.硕果累累的,多产的,有利的
B.
a.恶意的,令人不快的
C.
a. 暂时的
D.
a.精心计划的,复杂的
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